Best Way To transfer screen elements to ABAP variables

Question

Hi all,
whats the best way to attach the abap elements to screen elements
normally earlier versions before 4.7C i always used TABLES : MARC in abap program
and in screen design i used to click "GET from DICTIONARY" to design the screen in Screen painter
The advantage with this approach is all data base elements are attached to our screens like search helps
atomatic checks etc and more over all the information valid for a particular plant are retrived by the system search helps themselves like
for example on the screen we have screen elements/ fields  Plant , MRP controller.
in the plant i typed  "X110'.
now in the mrp controller i pressed F4 to search for valid mrp controller . Since we associated the screen elements with database elements with TABLES statement all the MRP controller relevent to that plant X110 are displayed. this is quite valid.
But i read usage of tables : in Object Oriented abap is Obsolete is this still the correct way of programming.
I can also use Some thing like this Data : st_marc type type MARC.
and in Screen design i can click "Get from program" This approach will loose all the database assignments to screen elements.
Now i can no longer retrieve the MRP controller relevent for plant 'X110'. F4 will show me all the MRP controllers in all plants.
Is there any other approach to do this. Thanks.
Edited by: Kavitha on Mar 13, 2008 2:37 PM

Answer 1

Please read the following two links. These experts explain it better than I could put in words!:
/people/thomas.jung3/blog/2005/09/08/oo-abap-dynpro-programming
/people/horst.keller/blog/2007/04/24/from-abap-ipo-to-abap-objects-and-the-separation-of-concerns
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/4fbafc9e-0e01-0010-dea9-9d23d1b269fb  (Under section Modularizing your programs)